So my husband and I have been TTC since July 2017... have had one miscarriage and have been having unpredictable cycles, making it hard to track ovulation. I saw my doctor a few weeks ago and she gave me paperwork to go get some blood work done on day 3 and day 21 of my next cycle....

So my question is... what do you consider Day 1? The last two days I’ve been having really light brown spotting would that be day 1 and 2? Or is day 1 when I see actual red blood?